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Problem with jamming Record shifter(5 posts)

Problem with jamming Record shifterbill
Mar 27, 2001 10:46 AM
My ergo shifter has been jamming when I'm trying to shift to larger cogs. I feel as if I've read about this on this board before, but I didn't take (enough) notice.
It is definitely a mechanical jam. Then it seems to "unblock" itself, and you can shift normally for awhile until it happens again. Sometimes you can sort of work it and then all of the sudden it'll let go. Because there is absolutely no give when it jams, I feel that it's in the shifter and not the derailuer, although I guess I don't know for sure.
One more thing; I can't seem to get it to do it on the stand, only on the road.
re: Problem with jamming Record shifterHelper
Mar 27, 2001 11:48 AM
Is handlebar tape or your fingers wrapped too close around the underside of the hoods? Sometimes handlebar tape puts pressure near the slot in the rubber hoods. This somehow screws up a spring. Also, on the inside of your hoods, underneath where they wrap around the shifter levers, is a little rubber notch that's supposed to fit into a corresponding hole in the hoods. Sometimes this gets covered with tape.
verrrry interestingbill
Mar 27, 2001 12:01 PM
You know, when these things were first installed, I had read the manual about how the tape was supposed to be wrapped, and the LBS did not do it that way. I figured they knew what they were doing, and it worked well for nigh a year, but methinks we ought to revisit this issue. Thanks, my friend.
When you say "slot in the rubber hoods," what slot are you speaking of? The slot where the lever shifter fits through? The slot where the thumb shifter fits?
I also need to check that little rubber nubby. I think I know exactly what nubby you mean.
me thinksJiggy
Mar 27, 2001 6:12 PM
you either got a cable catching somewhere (not letting lever pull), an Ergo lever ready to let loose (sticking or broken G-springs), or a poorly adjusted rear mech. If it's broken G-springs, you're in for a treat- lots of fun to replace, i.e., a real b!tch. A good LBS can do it, but often begrudgingly.
had exactly the same problem....JohnG
Mar 31, 2001 9:58 AM
Turned out to be a slightly "weak" return spring and a bit of extra tape under the hood. Once I repositioned the tape (under the hood) the problem pretty much went away. The ERGO return springs (on the thumb shifters) are quite weak so it doesn't take much to hang them up. If you do have a jamming problem just use you thumb to "pull up" on the lever ever so slightly.... that will help the weak spring.

good luck JohnG